[PATCH] Mac OSX support

[Tony J. White]

I've been working on getting Tremulous working on Mac OSX.

It still needs work, but you will find the patch here that is required
to get the mac build to stop crashing when it queries network interfaces:

http://www.tjw.org/tremulous/macosx/

(note that there are two seperate patches, one for tremulous SVN and another 
for ioquake3 SVN)

In addition you will need to remove the libSDL-1.2.0.dylib file from SVN ad
replace it with the libSDL.a file from there.

That libSDL was compiled using this patch:
http://www.algonet.se/~afb/libsdl/SDL-1.2.9-loadso.patch
So probably that should be included as well.

I'm pretty sure that the use of .bundles which (is required for OSX 10.3 and up)
will break compatability with OSX 10.2 and older.  I don't know much about
making backwards compatible versions, but I think most people use 10.3 or 10.4
anyway.  For example Wolf:ET was released for OSX over a year ago and only
supports 10.3 and up because of it's use of library ".bundle"s.

-Tony